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Use the substitution method to find solution sets (x,y) for the following systems of equations:

3x-5y=-11
6x+2y=26

  • Math -

    3x-5y=-11 (A)
    6x=2y=26 (B)
    (A)*(2)6x-10y=-22(C)
    (B)*(5)30x+10=130(D)
    (C)+(D)36x =108
    108/36=3
    x=3

    substitute in (A) or (B) choose easiest
    (B)- 18+2y=26 (take 18 from both sides
    2y=8
    8/2
    y=4

    so x=3 and y=4
    (3,4)

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